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Remote Annex 4000 Hardware Installation Guide
Chapter 4 Troubleshooting Procedures
4-2
Power-up and Boot Procedures
The Remote Annex 4000 has two modes of operation: normal and test.
Normal mode is the standard operational mode. Test mode provides
access to the ROM Monitor commands. Pressing the Test switch on
the front panel, within 30 seconds of either powering-up or a system
reset, puts the Remote Annex 4000 into test mode. When the Remote
Annex 4000 is in test mode, the Test button’s LED lights.
Figure 1-6 on page 1-9 illustrates the Remote Annex 4000’s front panel.
During the power-up and boot sequence, the Remote Annex 4000 runs
a set of diagnostics. The system LEDs display the diagnostics’ status;
the status LEDs light in sequence. The Remote Annex 4000 stops when
it detects one of four error conditions (see
Table 4-2 ). The pattern of
the system LEDs identifies the error condition.
Normal Mode Diagnostics
Following power-up or reset, the Remote Annex 4000 enters normal
mode. The following subsections describe both the possible error and
error-free conditions that can occur during power-up and booting in
normal mode.